在哺乳动物细胞中脑磷脂和神经节苷脂可能执行同样的功能.Those in mammalian cells, the cerebrosides and gangliosides, may perform similar functions.肌肉收缩是由化学物质三磷酸腺苷 ( ATP ) 提供动力的.Muscle contractions are powered by the chemical adenosine triphosphate (...
A long placard bore the names of all the new recruits.长长一张布告上写着全部新兵的名字.If you'll reverse the placard you'll see what I mean.你若把那张海报翻过来,你就知道我的意思了.A placard was posted up without any signature , accusing a number...